He studied piano with Lisa Grad, Nadia Reisenberg, Seymour Lipkin, Rosina Lhévinne and Beveridge Webster, and viola with Florence Nicolaides.

In the 1960s, Lubin frequented the New Hampshire workshop of Philip Belt, a pioneering American builder of fortepiano replicas, and became curious how Mozart's piano concertos would have sounded on these instruments in their original performances.

As a recording artist Lubin has made 20 CDs for Decca, Harmonia Mundi USA, Arabesque and Classical Soundings.

These recordings were issued by The Mozartean Players in trio format, where Lubin was joined by Stanley Ritchie, violin, and Myron Lutzke, cello.

Among the leading American proponents acknowledging Lubin's contribution in this area are Richard Cohn, Fred Lerdahl and Edward Gollin.